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四基色纤维构建的全色域混色模型及彩色纱纺制

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纺织学报 2025年第1期46卷 62-71页

作者：汪燕燕薛元陈宥融陈国方江南大学纺织科学与工程学院江苏无锡214122 浙江泰坦股份有限公司浙江绍兴311800

为在全色域范围内即时调控纱线的成纱颜色,以3种彩色纤维和1种灰色纤维为原料,用耦合-叠加混色的方法构建了四基色耦合-叠加混色模型,基于该混色模型可指导四基色纤维在全色域范围内纺纱;结合三通道数控转杯纺纱原理,构建了协同调控多... 详细信息

为在全色域范围内即时调控纱线的成纱颜色,以3种彩色纤维和1种灰色纤维为原料,用耦合-叠加混色的方法构建了四基色耦合-叠加混色模型,基于该混色模型可指导四基色纤维在全色域范围内纺纱;结合三通道数控转杯纺纱原理,构建了协同调控多通道喂入速度比-基色纤维混纺比-成形纱线色彩的三通道转杯纺混色纺纱机制;从全色域混色模型中选择了等彩度不同色相、等色相不同明度、等色相不同彩度3个系列的156个颜色进行纱线和织物的纺制,测量了纱线的HSL值,验证了基于全色域混色模型和三通道数控转杯纺纱平台生产彩色纱的工艺可行性。结果表明:基于全色域网格化混色模型纺制出的混色纱及其织物的色彩变化和全色域混色模型色彩具有一致的变化规律,混色纱的色相角变化范围为0°~360°、明度变化范围为0~1、彩度变化范围为0~1,证明所构建的全色域混色模型可实现从色相、明度、彩度3个维度对成纱颜色进行数字化精准调控。

关键词：色纺纱全色域混色模型转杯纺纱色彩调控数控纺纱

技术异质性视角下中国农村人居环境治理效率测度及时空演化分析

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生态经济 2025年第2期41卷 203-211,221页

作者：王燕燕黄森慰福建农林大学公共管理与法学院福建福州350002

基于技术异质性视角将共同前沿分析框架与SBM模型相结合,构建共同前沿全局SBM模型测度2015—2021年中国30个省份的农村人居环境治理效率,借助无效率解构分析效率损失原因及改善潜力来源,并采用核密度估计和探索性空间数据分析刻画其时... 详细信息

基于技术异质性视角将共同前沿分析框架与SBM模型相结合,构建共同前沿全局SBM模型测度2015—2021年中国30个省份的农村人居环境治理效率,借助无效率解构分析效率损失原因及改善潜力来源,并采用核密度估计和探索性空间数据分析刻画其时空动态演化特征。研究表明:(1)中国农村人居环境治理效率与治理技术地区差异显著,呈现东部>中部>西部>东北地区的梯度特征。(2)农村人居环境治理效率总体呈先下降后上升态势且内部差异趋于缩小。(3)农村人居环境治理效率呈现显著的空间正相关性,研究期内空间集聚格局并未发生剧烈变化,东部农村人居环境治理效率发展迅猛但带动作用有限,西部和东北地区长期处于低位,中部有较高水平突破。

关键词：技术异质性农村人居环境治理效率共同前沿全局SBM模型时空演化

Generalized Exact Boundary Synchronization for a Coupled System of Wave Equations with Dirichlet Boundary Controls

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Chinese Annals of Mathematics,Series B 2020年第4期41卷 511-530页

作者： yanyan wang School of Mathematical Sciences Fudan UniversityShanghai 200433China

This paper deals with the generalized exact boundary synchronization for a coupled system of wave equations with Dirichlet boundary controls in the framework of weak solutions.A necessary and sufficient condition for the generalized exact boundary synchronization is obtained,and some results for its generalized exactly synchronizable states are given.

关键词： Generalized exact boundary synchronization Coupled system of wave equations Generalized exactly synchronizable state Dirichlet boundary control

Multiperiod Optimal Allocation of Emergency Resources in Support of Cross-Regional Disaster Sustainable Rescue

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International Journal of Disaster Risk Science 2021年第3期12卷 394-409页

作者： yanyan wang School of Public Policy and Management Tsinghua UniversityBeijing 100084China

Cross-regional allocation is necessary for the rational utilization and optimal allocation of *** is also the key to effective and sustainable disaster *** research,however,generally centers on emergency resource allocation only within territories or *** article proposes a multiperiod allocation optimization model for emergency resources based on regional selfrescue and cross-regional collaborative rescue *** model targets the shortest delivery time and lowest allocation costs as its efficiency goals and the maximum coverage rate of resource allocation in the disaster-affected locations as its equity *** objective weighting fuzzy algorithm based on two-dimensional Euclidean distance is designed to solve the proposed model.A case study based on the Wenchuan Earthquake of 12 May 2008 was conducted to validate the proposed *** results indicate that our proposed model allows for optimal,multiperiod cross-regional resource allocation by combining interterritorial and nearby allocation ***-regional relief makes resource allocation more equitable,minimizes dissatisfaction,and prevents *** decision preferences appear to significantly affect the choice of resource allocation scheme employed,which provides flexibility for decision making in different emergencies.

关键词： Cross-regional collaborative rescue Efficiency and equity Emergency resource allocation Multiperiod allocation Wenchuan Earthquake

Determination of generalized exact boundary synchronization matrix for a coupled system of wave equations

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Frontiers of Mathematics in China 2019年第6期14卷 1339-1352页

作者： yanyan wang School of Mathematical Sciences Pudan UniversityShanghai 200433China

For a coupled system of wave equations with Dirichlet boundary controls,this paper deals with the possible choice of its generalized synchronization matrices so that the admissible generalized exact boundary synchroni... 详细信息

关键词： Coupled system of wave equations generalized exact boundary synchronization generalized synchronization matrix

Partial approximate boundary synchronization for a coupled system of wave equations with Dirichlet boundary controls

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Frontiers of Mathematics in China 2020年第4期15卷 727-748页

作者： Chenmu wang yanyan wang School of Mathematical Sciences Fudan UniversityShanghai 200433China

In this paper,we propose the concept of partial approximate boundary synchronization for a coupled system of wave equations with Dirichlet boundary controls,and make a deep discussion on *** analyze the relationship between the partial approximate boundary synchronization and the partial exact boundary synchronization,and obtain sufficient conditions to realize the partial approximate boundary synchronization and necessary conditions of Kalman’s *** addition,with the help of partial synchronization decomposition,a condition that the approximately synchronizable state does not depend on the sequence of boundary controls is also given.

关键词： Coupled system of wave equations partial approximate boundary synchronization partially approximately synchronizable state

Multiperiod Equitable and Efficient Allocation Strategy of Emergency Resources Under Uncertainty

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International Journal of Disaster Risk Science 2022年第5期13卷 778-792页

作者： yanyan wang Baiqing Sun School of Humanities Social Sciences and LawHarbin Institute of TechnologyHarbin 150001China School of Management Harbin Institute of TechnologyHarbin 150001China

Equitable and efficient allocation of emergency resources is critical to ensure the success of relief *** challenge comes largely from two aspects:the resources available for allocation are usually limited in quantity,especially in the early period of emergency response;and a large amount of uncertain information in the relief process affects the decision making of resource allocation.A multiperiod allocation model of emergency resources that takes into account both efficiency and equity based on uncertain disaster information is *** number and triangular fuzzy number are introduced to describe the different sources of uncertainty(for example,demand,transportation time,and maximum transport amount),and the loss caused by unmet demand is used to quantify ***,the deterministic transformation method of uncertain parameters is designed and the linear weighted sum method is applied to solve the proposed ***,a computational case based on the 2017 Jiuzhaigou earthquake in Sichuan Province,China was conducted to validate the proposed *** results show that the proposed model is feasible in the multiperiod allocation of emergency resources among multidisaster sites,and the findings can help emergency managers to allocate emergency resources more scientifically,equitably,and effectively under uncertainty.

关键词： China Emergency resource allocation Equity and efciency Uncertainty Unmet demand

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从虚瘀论治肌少-骨质疏松症

中国民间疗法 2025年第1期33卷 1-4页

作者：杨小梅汪燕燕宁夏医科大学宁夏银川750001 宁夏回族自治区银川市中医医院宁夏银川750001

肌少-骨质疏松症是肌少症和骨质疏松症并存的退行性代谢综合征,病程长,显著增加老年人发生骨折的风险,严重降低老年人的生活质量。该文重点阐述从虚瘀论治肌少-骨质疏松症,“虚”与“瘀”共同影响肌少-骨质疏松症的病理进程。在临床上,... 详细信息

肌少-骨质疏松症是肌少症和骨质疏松症并存的退行性代谢综合征,病程长,显著增加老年人发生骨折的风险,严重降低老年人的生活质量。该文重点阐述从虚瘀论治肌少-骨质疏松症,“虚”与“瘀”共同影响肌少-骨质疏松症的病理进程。在临床上,该病多表现为“脾肾两虚夹瘀”,治疗上以健脾补肾为要,益气活血贯穿始终,临床疗效显著。

关键词：肌少-骨质疏松症肉痿虚劳骨痹骨痿骨质疏松症肌少症脾肾同治

Storage Assignment Optimization in a Multi-tier Shuttle Warehousing System

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Chinese Journal of Mechanical Engineering 2016年第2期29卷 421-429页

作者： wang yanyan MOU Shandong WU Yaohua School of Control Science and Engineering Shandong University Jinan 250061 China

The current mathematical models for the storage assignment problem are generally established based on the traveling salesman problem（TSP）,which has been widely applied in the conventional automated storage and retrieval system（AS/RS）.However,the previous mathematical models in conventional AS/RS do not match multi-tier shuttle warehousing systems（MSWS） because the characteristics of parallel retrieval in multiple tiers and progressive vertical movement destroy the foundation of *** this study,a two-stage open queuing network model in which shuttles and a lift are regarded as servers at different stages is proposed to analyze system performance in the terms of shuttle waiting period（SWP） and lift idle period（LIP） during transaction cycle time.A mean arrival time difference matrix for pairwise stock keeping units（SKUs） is presented to determine the mean waiting time and queue length to optimize the storage assignment problem on the basis of SKU *** decomposition method is applied to analyze the interactions among outbound task time,SWP,and *** ant colony clustering algorithm is designed to determine storage partitions using clustering *** addition,goods are assigned for storage according to the rearranging permutation and the combination of storage partitions in a 2D *** combination is derived based on the analysis results of the queuing network model and on three basic *** storage assignment method and its entire optimization algorithm method as applied in a MSWS are verified through a practical engineering project conducted in the tobacco *** applying results show that the total SWP and LIP can be reduced effectively to improve the utilization rates of all devices and to increase the throughput of the distribution center.

关键词： Multi-tier shuttle warehousing system storage assignment optimization open queuing network ant colony clustering algorithm